function timestampToTime(timestamp) {
    var date = new Date(timestamp);//时间戳为10位需*1000，时间戳为13位的话不需乘1000
    var Y = date.getFullYear() + '-';
    var M = (date.getMonth()+1 < 10 ? '0'+(date.getMonth()+1) : date.getMonth()+1) + '-';
    var D = date.getDate() + ' ';
    var h = date.getHours()<10?"0"+date.getHours()+':':date.getHours() + ':';
    var m = date.getMinutes()<10?"0"+date.getMinutes()+':':date.getMinutes()+':';
    var s = date.getSeconds()<10?"0"+date.getSeconds():date.getSeconds()+"";
    return Y+M+D+h+m+s;
}